Title :
Broadening of bandwidths in grating multiplexer by original dispersion-dividing prism
Author :
Shirasaki, M. ; Nakajima, Hiromasa ; Asama, K.
Author_Institution :
Fujitsu Laboratories Ltd., Atsugi, Japan
Abstract :
A grating multiplexer with broad bandwidth in each channel was developed. It was achieved by devising a new method using an original dispersion-dividing (D2 prism. A nine-channel multiplexer with channel spacings of 10 nm was fabricated for single-mode fibres in the 1.55 ¿m-wavelength region, and bandwidths of 7 nm were obtained.
Keywords :
diffraction gratings; multiplexing equipment; optical fibres; optical prisms; broad bandwidth; channel spacings; dispersion-dividing prism; grating multiplexer; nine-channel multiplexer; single-mode fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860525
